Water-heater.



W. E. BEILMAN. WATER BATER. APPLIQATIN FILED JULY 30,1909.

Padnted July 5, 1910.

2 SHEETS-snm' 1.

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W. E. BEILMAN.

WATER HEATER APPLICATION FILED JULY/30, 1909.

N. AJLIAM E. Al'lEILllIf'kN. OF BUFFALO, NEW YORK.

WATER-HEATER.

Specification of Letters Patent.

tiert-aia.

Application filed July 30. 1909. Serial o. 510,422.

Patented July Si, Nitti;

vailtoniatie regulator operated hy a tlieiiiio letat-is eiiiployed foi' regulating the supply of the heating agent in aeeoi'danee with the tenipe atuie ot the water.

The ohjeet of this invention is to een.`

struct a water heateifot thin` type having main and secondary lnii'iiei'f.7 in wliieh siniple and positively operated nieana are veinployed for controlling the supply ot the heating agent. to both lhuiiiers and toi' niaiiitaining at all tiiiies a liniited supply ot the heating agent iii the seeoiidary liui'ii'er vand regiilat-iiig suoli liinited Supply in aeeoidanee with the teiiiperalture of the water.

liinthe aeeoiiipanying-.@awinga: Figure l. represents a SeetioiialAeleiation of a 'atei' heater einhodying the invention. Fig. Qis a ii'agn'ientary seetioiial'elevation, on aii enlarged scale, of the valve easing and regulating valve for theI niaiii burners. Fig. 3 is a transverse seet-ioiial elevation, on line 3 3,

A Fig. 2. '.Fig. if is a pera'peetive view ot the niaiii regulating valve i'letaehed; Fig. 5 isi a tragnientaiy s'eetioi'ial elevation, on an elilarged scale.7 ot the regulating Valve tor the pilot. burner, and .its aessoeiated parte.

Like reference eliaraetei'a refer to like parta in the Several figures.

A represents a water reservoir or boiler which is ot' the usual contati'action,v having suitable inlet and oi'itletfpipes a, and a, and surrounded hy a easing B in tlieilower portionot which, heiieath the reservoir, are l0- i eateil the, niaiii gaa burners l) and the 'pilot 'or Secondary hin'nei.' li. ,A thorniostat pipe .Clie conveniently arranged onteide of the casing .in eoniiiiunieation with the rezervoir So that the water ot the reservoir is free to circulate through this pipe. A suitable thermostat tube l) is suspended in the pipe C and is provided with a. valve operating rod rl whieh extends through the tuhe and is rigidly secured inthel lower end thereof so that it in nioved hy the expansion and Contraetionot the tulie. Al` the upper end oli the pipe C and the tulie l), is' located a the waste of gas incident thereto.

valveieaxing ll provided with a gas` inlet pipe e and outlet or t'eed pipeai'i and e2 for supplying gas to the niaiu and pilot hurners i'espeet i vely. f

A\ll ot' the parts so tai' deaeiihed nioii in heaterl otilhis general type lie ot aiiliysuitahle eonsl'i'uetion.

This invention relates particularly to the are eoni and may eonstinetion and regulation ot' the .valvesV for eontiolling the supply of gas to the niaiii and pilot. burners.

lt eoiisiStS in eoiisti'neting the Valves forlioth the inain and pilot burners and coniieetiiig th'ein with the thermostat in such a niainieil that the supply ot gaa to hoth burn` era will he regulated by the temperature oi:4

the water and the. pilot valve will adniit a liiiiited aiiiouiit oli gaS to the pilot burner 4 at'ter the valve for the niain lnirnere has been closed, tor maintaining the temperature ot the atei', and in ease the temperature of the water iiieieases after the valve for the inain hui'iiersisl closed, the' pilot valve will he further closed by t-lietherinostat until only sullieieiit gas is admitted to the pilot hiii'ner to keep the Sanie lighted, tlie'i'ehy preventing the overheating ofthe water and ln the construction shown, the following iiieans are employed for accomplishing this:

A main valve F is pivotally Seeiiied hetween its ends within the easing Fnheing pro-- vided atoiiel end with an annular valve face j which is adapted to close the end o1"- the feed pipe e. The other end or aiin f of this valveis slotted and Straddles a reduced poi-tion q of a head G which is screwed upon the upper end of the valve 'operating' F. A slotted {lat-Spring ll is Secured at one 100 end to' the aiin f and at. its other end enthe underside ol. the upper enlarged po'itiong of the, head G, T his spring holds` the arin f norniallyriii engagement with the lower enlarged portioii'g" el .the head (it 105 and tende to prevent any up and down movement.' oi the rod Z independent olf the arni f, thereby causing the inoveineiit ot the rod to he Communicated to the valve F.

Yi'rlieii the. tlieriiieatfit inhe D expands under 1l@ the actionof the heated Water, the rod. d is moved downwardly, thus serving to gradually raise the valve face f until it closes the opening intothe feed .pipec for the main 5 burners, and when the water cools, the thermostat tube D contracts, moving the rod Z upwardly and opening the valve.. The `supply of gas to the main burners 1s, thus regulated by the temperature of the water.

The'head G v's a reduced stem I which projects, thi-nudi 'jan' opening in the upper side oft-lrefosiug E where it is accessible for turning .to adjust the head on the rod cZ.

A lcap or cover z' is screwed upon a suitable boss on the casing E and incloses and protects the outer end of the stem I. A suitable jpackin z" surrounds the stem I adjacent to 'the un erside of the boss for'preventing the .f escape' of gas through the pening in the casing around the stem, and a coiled spring i2 'is' arranged around the stem I between this packing and the upper enlarged portion g of,the head G for holding the packl y 'ing in position. A coiled spring K is preferably Alocated between the underside of the valve face f and the bottom of the casing and Serves to. supplement the action of the Vspring H and assist in closing the main valve.

For regulating the supply of gas to the pilot burner the following construction is employed: The gas feed pipe e2 for the pilot burner connects with a valve casing L 'through which extends a sleeve Z which communicates atits lower end with a pipe Z leading to the ilot burner. In the sleeve Z within 'the va ve casingl L is a port Z2 through whichthe gas passes from the feed pipe e2, This port is controlled by a pilot i101 valve M which -tswithin the sleeve Z and extends through the top of the valve casing L, where it is connected by an adjustable coupling m with the lower end of the valvef operating. rod al.' Thepilotv valveM is 45Imoved pack and forth past the port Z2 by the operating rod Z under the act-ion of the thermostat, and regulates the sizeof this port in accordance with the temperature .of the water. As the "valve M for. the pilot ers are both connected to and actuated by 4'the same valve operating rod, these valves lmove in Aunison in accordance with the'expansioneand contraction of the thermostat. `The pilot valve M is so'l` adjusted upon the 'actuatingrod d that a movement of the lati `-"ter, "sufficient t`o close the valve F., will not I'gniove.-the, valve-M a suflicient dist-'ance to entirely close thewport Z2 and'aJ limited .amount f gas will be supplied to the pilot burner'after thevsu ply to the main burners, has been entire y shut off. The `ilot burner will thus tend to maintain a uni orm temperature of the water in the reservoir aftcrlthe same has been heated and will burner and the valve F. for the main bnrn.

prevent the cooling thereof. It sometimes happens, however, that when no water is being used, the temperature of the water in the boiler will continue to increase under the action of the heat from the pilot burner-after themain burners have been shut oft'. This produces a further expansion of the thermostat sullicient to overcome the resistance of the spring H and move the valve operating rod d downward until the enlarged portion g of the head encounters the arm f of the main valve F, when further movement is prevented. This additional movement of .the rod (Z after the valve F is closed moves -the pilot valve M past the port Z2, thus s0 further reducing the supply of gas to the pilot burner. The sup'ply is not entirely cut otl, however, as the pilot valve M is sutli-` ciently loose in the sleeve Z to permit a small amount of gas to enter the. port Z2 and pass 85 through the sleeve to the pilot burner for maintaining the flame thereof. This results in amaterial saving of gas and at the same Atime serves to keep the water in the reservoir at the desired temperature and to prevent the overheating thereof and the waste of gas incident thereto. By adjusting the' coupling m, the position of the valve M relative to the port Z2 may be regulated so that th'e valve will be moved'a greater or less 95 distance past this portunder the action of the operating rod and the flame o-f the pilot burner can thus be regulated in accordance with the pressure of gas and the size of the heater.

By arranging the valves for the main an'd' pilot burners at opposite ends ofthe thermostat, a simple and compact construction is produced in which bothvalves are positively and simultaneously operated by the thermostat. The expansion and contraction of the thermostat thus regulatesthe supply of gas to both burners in accordance-with the temperature of the water. Thepilot'burner is utilized for heatinor purposes as well as for lighting the main burners, and its use does not result in the waste of as which occurs in constructions in which t e supply of gas to the pile*Y burner is not regulated. Greater elliciency is thus obtained from the burners and a more uniform temperature of th'e Water is maintained in the reservoir with an ceonomic consumption of gas.

I claim as my invention:

1. In alwater heater, the combination of a reservoir, main and secondary heaters therefor, main and secondary devices for controlling the supply-of the heating medium to.said main and secondary heaters, and thermostatic means influenced by the 125 temperature of the water Afor operating said main and secondary controlling devices to shut 0H the supply of the heating medium for the main heater and thereafter to regulate the supply of heating medium to the 130 valve to be actuatedA by the 'means when the main valve is closed, sb-

secondary heater while the supply of the heatinv medium to the main heater remains shut o substantially as set forth.4

2. In a water heater, the combination of a reservoir, main and secondary heaters therefor, main and secondary valves for controlling the supply of fuel to said main and secondary heatersl respectively, and thermostatic means infiuenced bythe temperature of the water which operate to close said main valve to shut oft the supply of fuel to the main 'heater at a predetermined temperature of the water and thereafter operate the secondary valve to regulate the supply 'of fuel to the secondary heater while the main valve remains closed, substantially as set forth.

3. In a water heater, the combination of a reservoir, main and secondary heaters therefor, main and secondary valves for controlling the supply of fuel to said main and.

secondary heaters respectively, thermostatic lmeans influenced by the temperature of the water foroperating said valves, and a connection between .the thermostatic means and the main valve which allows the secondary thermostatic stantially as set forth.

4:. In a'water heater, the combination of a reservoir, main and secondary heaters therefor, mam and secondary valves for controlling the supply of fuel to sald mam and secondary heaters respectively, a thermostat,

a yielding connection with the main valve i which allows the secondary valve to be actuated by said rod after the main valve has been closed.

5.v In a Water heater, the combination of4 a reservoir, main and secondary heaters therefor, main and secondary valves for con'- trolling the supply of fuel to said main and secondary heaters respectively, a water connection arranged between said valves, a rod extending through said water connection and operated thermostatically by the temperature of the Water, said rod being conneeted at its opposite ends to said valves for operating them, substantially as set forth.

Witness my hand, this 28th day of July,

WILLIAM E. BEILMAN. Witnesses E. C. HARD, C. B. HoRNBECK. 

